Enhancing Cloud based E- Learning using Knowledge Sharing ... Cloud based E- Learning using Knowledge Sharing System ... learning in cloud computing are servile. ... the quality of teachers or the availability

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  • International Journal of Computer Applications (0975 8887)

    Volume 84 No 9, December 2013

    26

    Enhancing Cloud based E- Learning using Knowledge

    Sharing System

    ARUNA.R S.PRAKASAM, Ph.D M.Phil (CS) Research Scholar Assistant Professor SCSVMV University Department of CSA, SCSVMV University Enathur, Kanchipuram Enathur, Kanchipuram

    ABSTRACT The developing countries will be know the technology and

    innovation to everywhere throughout the country including

    small rural areas. In which information communication

    technology (ICT) is being used to transform education. In this

    research in detail the various level of education base e-

    learning in cloud computing are servile. The challenge faced

    by cloud users and providers are security concerns towards

    cloud services. These security issues acts as a barrier in the

    growth of cloud computing. The trust between provider and

    users is the most important factor to be considered for a cloud

    service and application. Here we present an analysis of survey

    issues in a cloud environment. Solution exists to a certain

    extent for various issues. There are trust based solutions

    available to provide security in various collaborative

    environments. These papers describe enhancing cloud based

    e-learning system in detail.

    1. INTRODUCTION Cloud computing provides a variety of computing resources

    from server and storage to enterprise applications such as

    email, security, backup, voice all delivered over the internet.

    It provides delivers a hosting environment that is immediate

    flexible, scalable, secure. It is one of the new technology

    trends likely to have a significant impact on the teaching and

    learning environment.

    There are several cloud computing services provides that offer

    support for educational systems among there are Amazon,

    Google, yahoo, Microsoft E-Learning is widely used today on

    different educational levels continuous education computing

    trainings, academic courses there are at least two entities in

    valued in an e-learning system the students and the trainers

    2. EXISTING CLOUD BASED E-LEARNING

    Traditional e-learning network to cloud e-learning E-Learning is an internet based learning process, using

    Internet technology to design, implement, select, manage,

    support and extend learning, which will not replace traditional

    education methods, but will greatly improve the efficiency of

    education. As e-learning has a lot of advantages like

    flexibility, diversity, measurement, opening and so on, it will

    become a primary way for learning in the new century as in

    Mendez [19] illustrate that in traditional web - based learning

    mode, system construction and maintenance are located inside

    the educational institutions or enterprises, which led to a lot of

    problems, such as significant investment needed but without

    Capital gains for them, which leads to a lack of development

    potential. In contrast, cloud based e-learning model

    introduces

    Scale efficiency mechanism, i.e. construction of e-learning

    system is entrusted to cloud computing suppliers, which can

    make providers and user to achieve a win-win situation. The

    cloud based environment supports the creation of new

    generation of e-Learning systems, able to run on a wide

    Range of hardware devices, while storing data inside the

    cloud.

    Ouf [20] has presented an innovative e-learning ecosystem

    based on cloud computing web 2-0 technologies. The article

    analyses the most important cloud based services provided

    by public cloud computing environments such as Google App

    Engine, Amazon Elastic Compute Cloud (EC2) or Windows

    Azure, and highlights the advantages of deploying E-Learning

    2.0 applications for such an infrastructure. The authors also

    identified the benefits of cloud based E-Learning 2.0

    applications (scalability, feasibility, or availability) and

    underlined the enhancements regarding the cost and risk

    management.

    Chandral[21] focused on current e-learning architecture model

    and on issues in current e-learning applications. The article

    presents by hybrid instructional Model as the blend of the

    traditional classroom and online education and its

    customization for e-learning applications running on the cloud

    computing infrastructure. The authors underline the e-learning

    issues, especially the openness, scalability, and development /

    customization costs. The existing

    E-learning systems are not dynamically scalable and hard to

    extend integration with other e-learning system is very

    expensive. The article proposed the hybrid cloud delivery

    model that can help in fixing the mentioned problems.

    In this article a new paradigm is highlighted in educational

    area by introducing the cloud computing in order to increase

    the scalability, flexibility and availability of e-learning

    system. The authors have evaluated the traditional e-learning

    networking model, with its advances and issues, and the

    possibility to move the e-learning system out of schools or

    enterprises, inside a cloud computing infrastructure. The

    separation of entity roles and cost effectiveness can be

    considered important advantage. The institution will be

    responsible for the education process, content management

    and delivery and the vendor takes care of system construction,

    maintenance, development and management. The

    e-learning system can be scaled, both horizontally and

    vertically, and the educational organization is charged

    according to the number of used servers that depends on the

    number of student as in

    According to manop phankokkruad. 2012 [1] has addressed

    the problems of the cloud computing as, the classical e-

    learning system is based on client / server architecture thus

    they lack of the scalability, flexibility and interoperability. It

    makes the learning resources cannot share, and the system

    improvement is not easily. In their paper [1]. Authors have

    proposed a new architecture for

  • International Journal of Computer Applications (0975 8887)

    Volume 84 No 9, December 2013

    27

    E-learning system that the architecture separate into three

    layers includes infrastructure, platform and application.

    On infrastructure layer, the learning resource from the

    traditional system are transferred to the cloud database instead

    of the usual DBMS whereas on platform layer, a new e-

    learning system that consists of the CMS, AMS, and other

    service components were developed to be the intermediary

    between cloud database and the applications. Finally on

    application layer, CAT web application and WBI application

    were developed for interacting with the students client [1].

    Data portability is very important in educational sectors.

    Student does several projects and research works on diverse

    fields. Moreover they collect several materials associated with

    their study like lecture, slides and various supplementary

    documents. However, today security is a very big concern for

    everybody residing in a country. Hard drive failure is an

    ineluctable phenomenon in the contemporary Endeavour.

    Most of the time the task done by the students destroys due to

    the computer virus attack. Hardware failure or inefficient

    management of PC.

    Due to the poor economical condition the government can

    serve only few computers to each institute which is

    approximately 0.782 per 100 people [14] moreover the survey

    performed by the organization amader gram [15] shows that

    the government can provide computer only 35% school out of

    its total school.

    However the fulfillment of software requirement is even more

    severe than hardware fulfillment. Since the government

    cannot afford the high price software for each institute

    therefore the use of pirated software is increasing day by day.

    It is often observed that the pirated software has lots of

    problems and does not give the exact performance what the

    legitimate one does. In addition the vendors are also depriving

    from getting there revenue due to the increasing use of pirated

    version of software. Since the current system does not have

    any concept of resource sharing so the government cannot

    fulfill individual demand by supply unique resource for each

    of them due to the low economic condition of the country.

    According to our survey we find that most of the institutes do

    not their PCs for the 40% of the total working hour on an

    average. In our proposed architecture the cloud system has the

    knowledge of all unused resources and assigns resources from

    those free portions if any request arrives. In our designed

    architecture the partners associated with the cloud system

    offers software to the cloud for individual user with a

    reasonable price rate.

    Distance learning education provides opportunity to carry on a

    course of study while balancing other commitments. In our

    education system it is observed that there is a massive

    difference between the knowledge provides in urban area to

    that of rural one. In urban areas we find some serious flaws in

    number of teachers, the quality of teachers or the availability

    of various updated resources such as different e-learning

    toolkits. Moreover some people stay and work in a distant

    area has little access to higher education or their responsibility

    to job prevent them from catching the scheduled lectures.

    Sometimes the course that someone intended to complete is

    available at a provider that is an inconvenient distance from

    where he lives. Thus the student completing their education in

    rural area fined themselves way behind in knowledge when

    they are facing interview for a job or thinking for higher

    studies. In our proposed architecture we are bindings all the

    areas ranging from urban to rural one into a single domain of

    cloud system and are facilitating every institute to collect the

    different material related to their education by offering the e-

    learning services. Since the government now offers those

    services with a very minimum charge so everybody including

    teacher to student will now improve their knowledge with

    those updated resources. This will definitely lesson the

    knowledge barrier between the students all over the country.

    Mikroyannidis states that the cloud offers a lot of services for

    building adaptive and customizable cloud Learning

    Environments (CLE). He also explains how CLEs extend the

    borders of the learning environments beyond of educational

    organization. Additionally this work proposes a learning

    scenario based on the use of cloud learning services. Thus, to

    advantage of these features educational institutions are also

    moving towards providing their services by using cloud

    technologies. However, in the educational domain, services

    are scarcely adapted and offered in cloud.

    Table 1.1 Comparative study of existing Cloud based

    e-learning methods

    Exiting System

    Name/ Author

    Name/ Year

    Advantage of

    Methodology Limitation

    An E-learning system

    Architecture based on

    Cloud

    Computing/Md.Anwar

    Hossain Masud,

    Xiaodi

    Huang/2012

    It provide

    public cloud

    computing

    environments

    such as EC2

    Google app

    engine also

    creation of new

    generator of e-

    learning

    systems It like

    flexibility,

    diversity,

    measurement,

    opening

    e-learning is

    an internet

    based

    process

    using

    internet

    technology

    to

    design

    implement

    select,

    manage and

    extend

    learning,

    which will

    not replace

    traditional

    education

    methods

    Enhanced virtual e-

    learning environments

    using cloud

    computing

    Architectures/Eugen

    Zaharescu/2012

    The EC2 users

    rent out from

    Amazon virtual

    machines that

    can be accessed

    remotely. It is

    computing

    power storage

    capabilities

    software

    platforms and

    services device

    and location

    independence

    enables

    data security

    require a

    high level

    Qos quality

    of services

    management

    and need for

    backup is

    critical

    Cloud based

    architecture for an

    affective

    recommender system

    The cloud

    offers a lot of

    service for

    building

    The service

    layer

    includes two

    storage

  • International Journal of Computer Applications (0975 8887)

    Volume 84 No 9, December 2013

    28

    of learning

    resources/Derick

    leony, Abelardo

    pardo, Hugo A.

    Parada g.,

    adaptive and

    customizable

    cloud learning

    environments

    advantage of

    features

    educational

    institutions are

    also moving

    towards

    providing their

    services by

    using cloud

    technologies in

    the educational

    domain,

    services are

    scarcely

    adapted offered

    in cloud

    elements to

    keep the

    information

    of the

    learning

    resources

    and the

    learners

    affective

    states the

    storage for

    learners

    affective

    state is

    updated by

    requests

    from the

    client layer

    E-learning improved

    architecture for

    clouds/Gunjita

    shrivastava, Anukrati

    dubey &sandeep

    sahu/2013

    Cloud

    computing is a

    wide area

    network based

    computing the

    shared

    resources such

    as software and

    information are

    provided to

    computer and

    other devices it

    is computing

    facilitates the

    equal flow of

    data between

    the outsourced

    and outsourcing

    servicer the

    easily flow of

    information in

    the host

    organization

    It leads to

    management

    problems the

    webmaster

    will have to

    set up new

    systems for

    dealing with

    the conflict

    3. SECURITY IN E- LEARNING BASED SYSTEM

    In cloud computing paradigm, a cloud provider creates,

    deploys and manages the resources, application and services.

    Multi tenancy and virtualization are the key features to make

    efficient utilization of the existing resources and application.

    A single server, computing facility, data centre and operating

    system hosts many users, using virtualization. A large number

    of users are getting served by a cloud provider by this concept

    of resources sharing. Data protection, communication,

    resource management for isolation, virtualization etc. are

    some of the security issues arises due to multi-tenancy and

    virtualization in the cloud environment.

    Fig: 1

    4. PROPOSED CLOUD BASED ARCHITECTURE USING

    KNOWLEDGED SHARING SYSTEM In this work, architecture of Cloud based E- learning using

    Knowledge sharing System is used. Knowledge sharing

    system includes such as resources from learning objects, open

    educational resources, mobile education, Curriculum

    development, etc. The e-learning cannot completely replace

    teachers; it is only updating for technology, concepts and

    tools, giving new content, concepts and methods for

    education, so the roles of teachers cannot be replaced. The

    teachers will still play leading roles and participate the

    developing and making use of e-learning cloud. The blended

    learning strategy should improve the educational act. On the

    other hand, E-learning cloud is a migration of cloud

    computing technology in the field of e-learning, which is a

    future e-learning infrastructure, including all the...

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